Palantir Foundry Developer (Applications & Data Ingestion)

The Foundry platform involves multiple technology stacks hosted on AWS infrastructure as well as on-premises data centers. The role will require candidates to develop pipelines and applications within this ecosystem.

Key skills required:

- Proficiency in Python (mandatory), along with working knowledge of SQL and/or Scala 

- Strong experience with PySpark for distributed data processing 

- Familiarity with Ontology and Slate 

- Basic understanding of Workshop application design and visual aspects 

- Exposure to databases such as Oracle, MySQL, or Microsoft SQL Server (expertise in all is not required)

• Design and implement Foundry applications leveraging the Ontology (Objects, Object Types, Actions) to model real-world business entities and operational workflows.
• Build user experiences that enable analysts and operators to act on data (e.g., approve/resolve flows, exception handling, operational dashboards, write-back workflows).
• Implement Actions with authorization policies and validations; integrate with downstream systems/APIs when needed.
• Create reusable components and templates to accelerate future app builds.
• Partner with product and UX to define acceptance criteria and instrument telemetry/usage analytics.

• Build and maintain Foundry Pipelines (graph-based and/or code-based) for batch and streaming ingestion from sources such as REST APIs, S3 buckets, AWS/cloud databases, message queues.
• Implement schema management, data quality checks, lineage, and observability across ingestion layers.
• Use Code Workbooks / Foundry Repositories (e.g., PySpark, SQL, and Python tooling available in Foundry) to develop transformations, validations, and feature tables.
• Optimize performance (partitioning, caching, parallelization) and manage cost/throughput at scale.
• Establish robust CDC (Change Data Capture), incremental loads, and idempotent reprocessing patterns.

• Apply Foundry’s governance model: access controls, Row/Column-Level Security, and purpose-based permissions aligned with data contracts.
• Ensure compliance with organizational standards (PII handling, retention, and audit).
• Implement monitoring/alerting, SLAs/SLOs, and runbooks for data products and apps.

• Translate business requirements into technical designs and iterate quickly with stakeholders.
• Use Git-based workflows (branching, PRs, code reviews) within Foundry.
• Document solutions (tech specs, runbooks, user guides) and run enablement sessions.

• 3–6+ years of professional experience in data/application development; 2+ years hands-on with Palantir Foundry.
• Strong knowledge of Foundry Ontology (Objects, Properties, Actions, Interactions) and building Operational Applications on top of it.
• Proficiency with Foundry Pipelines and Code Workbooks/Repositories using PySpark and SQL (and/or Scala/Spark).
• Experience designing ingestion patterns (batch, micro-batch, streaming), quality checks, and lineage.
• Solid software engineering practices: testing, CI/CD, code reviews, version control.
• Familiarity with APIs and integrations (REST/GraphQL), and messaging/queues where applicable.
• Strong communication skills and ability to collaborate with non-technical stakeholders.

• Experience with data masking, and compliance controls in Foundry.
• Background with data modeling and semantic layers; designing scalable Ontology models.
• Exposure to ML/feature engineering in Foundry or integration with external ML platforms.
• Cloud fluency (AWS/Azure/Google Cloud Platform), object storage, and network connectivity patterns.
• Domain experience (e.g., Life Sciences, healthcare, manufacturing) is a plus.

• Palantir Foundry: Ontology, Objects & Actions, Pipelines, Code Workbooks/Repositories, Data Lineage & Governance
• Languages: Python, PySpark, SQL (Scala optional)
• Versioning/CI: Git (PR reviews, testing, CI/CD in Foundry)
• Monitoring: Foundry lineage/health, logs, alerting; complementary APM/observability tools
• Data Sources: REST APIs, JDBC/ODBC, S3, Kafka/Streams (as applicable)